yashsingh1/xdaforums huggingface dataset:
[Nexus 7 General] davelee1054:
How are all of you flashing this with success? Where are clear, detailed instructions on how to flash the ROM? This is the only thing available on the guy's website

(No need for me to even start on how undetailed and vague those instructions are...)

I keep getting this error when trying to flash it

The only explanations I can find are that (1) the download was bad or (2) I'm flashing the wrong ROM. This is the Grouper version for WiFi, exactly te model I have...downloaded the same file 5-6 times, getting this same error every time...
[Nexus 7 General] gregthomas129:
Is your tablet rooted with a custom recovery? If not do a search on XDA for the Wugfresh toolkit. You need to root it and install twrp recovery. If you've already done this then you probably have a wrong version of TWRP installed. I think 2.6.3.0 was the highest version I could get to work.
[Nexus 7 General] davelee1054:
Yes it's rooted with a custom recovery. I ended up solving the problem by going into the ROM and removing the few lines of code that checks for the product name being "grouper" and I was able to get it to install. Can't believe the developer did not supply these instructions.
[Nexus 7 General] MetalMan2:
He didn't "supply these instructions" because if you're flashing the right file to the right device you won't need to do that... if your Nexus 7 is a 2012 WiFi version, it's device name is "grouper". If your Nexus 7 2012 is a 3G version, it's called "tilapia". Timur made an install file for grouper, and another one for tilapia. Pretty straightforward, really. And I'd be willing to bet nobody here needed to change any lines of code to get USB ROM to install.

BTW, you sound rather ungrateful for the developer's work. He spent hundreds of hours getting it to the point it is, and I was even fortunate enough to be part of the development/beta portion of that development, so I have a small glimpse into the amount of time/effort he put into the project.
[Nexus 7 General] max414:
True that, i have 2012 wifi version n installed grouper build without a hitch
[Nexus 7 General] slippysoup:
I had the same issue as davelee1054 when using TWRP. Switched to CWM and it installed fine.
[Nexus 7 General] fulldaykg:
Things like this is why I love android! One of the coolest things I've seen done with a N7.
[Nexus 7 General] nu!me!:
Hi, I have finaly buy Nexus 7 for in car instalation...

the thing is that it have came with android 4.4.2

i have speand last couple day's trying to install USB ROM with TWRP with no luck

now I manege to do that with CWM

but just got plain system without google aps...

the other thing is that on my nexus with 4.4.2. I have problem with volume control, which is going down (-), but no up (+)

so I belive that it's 4.4.2 problem...

my question is ;

is this USB ROM working on 4.4.2 ?

if not, could someone point me where to look how to roll back to 4.2.2 (or some other version so I can get this thing to work ;))

thanks
[Nexus 7 General] gregthomas129:
So... your question is a little confusing. 4.4.2 is kitkat... which is a rom, 4.2.2 is jellybean... which is a rom and usbrom is 4.2.2 which is a rom. If you're asking if Timur's kernel will work with 4.4.2 then the answer is no. You roll back to 4.2.2 by flashing usbrom.
[Nexus 7 General] nu!me!:
Thanks gregthonas for explaining this to me ;)

One more question, when you instal USB ROM, does it comes with or without googleapps ?

( I have manege to install USB ROM, but it was without googleapps..so maybe I'm doing something wrong ?)

I think I get it...once I instal USB ROM, I didn't have google apps, so I download them,and install it via CWM...thanks for help ;)
[Nexus 7 General] gregthomas129:
That is correct, you'll need the gapps for CM10.1 from here: http://wiki.rootzwiki.com/Google_Apps
[Nexus 7 General] nu!me!:
Big thanks...:D
[Nexus 7 General] ITW2:
Is there anyone that knows of an bluetooth remote for changing volume and song, that fits on an steering wheel?

Something like this controle:

http://www.ebay.com/itm/Bluetooth-F...892?pt=US_FM_Transmitters&hash=item4ac3f9a98c

But that uses bluetooth and can connect to my nexus 7.

My Impreza is an 2001 modell so it soesent have remote in steering wheel.
[Nexus 7 General] j03uen:
OP, just a quick question,

I bought a voltage regulator to change the 12V to 5V, 3A and have soldered the red and black power cables from my micro usb plug to the appropriate cables on the regulator. However, when I go ahead and connect the regulator to a 12V power source, it doesn't seem to charge my phone. Do I need to trickle charge the two middle data cables in the micro USB plug?
[Nexus 7 General] Kuchar09:
You need to connect the other 2 wires together, I believe green and white (data wires). Some phones look for this connection before charging. I know my original droid did.
[Nexus 7 General] j03uen:
Cheers for the reply

So I just join the two data negative and data positive together? Do I need to connect them to the power source at all?
[Nexus 7 General] Kuchar09:
Yupp
[Nexus 7 General] j03uen:
Thanks for that,

another issue, I tried externally powering the usb hub, power goes through to the hub, however the hub nor any USBs plugged into the hub does not get detected on the Nexus 7.

The way I have it wired:

Here is a ROUGH diagram

http://i59.tinypic.com/2qb52s0.png

Do I need a red and black power cable from the nexus to the hub?
[Nexus 7 General] Kuchar09:
Humm its been awhile but I think you need the grounds to be connected together with the nexus 7.

So take your hub ground and put it with the ground for the tablet

Kinda like this
[Nexus 7 General] smassie75:
DVB-T Antenna

I'm still curious to know if anyone has found an adapter for the factory antenna to connect it to the DVB-T dongle.

I'm getting all of my parts in line for this install (also in a TB) but that seems to be about the only thing I cannot answer.

I've researched the MCX connector that the DVB-T has on it, but I cannot seem to find an solution to this problem.

Anyone figured this out? Or is everyone that's using a DVB-T using the included mag mount antenna?

Thanks for the inspiration of this build!

EDIT: After thinking more outside of the box, I think I have found a solution to this.

eBay search: GOLD PLATED MCX MALE TO BNC FEMALE CONNECTOR ADAPTER COAX CABLE ANTENNA USA - will snap into the DVB-T

eBay search: MOTOROLA FEMALE JACK to BNC MALE PLUG Adaptor Connector - will connect to the oem antenna.

I will post my results as soon as the come in.
[Nexus 7 General] zanix:
I was just about to suggest what you figured out on your own. I connected my car antenna using the same parts and it works much better than the small one the DVB-T tuner came with.
[Nexus 7 General] smassie75:
DVB-T not recognized

I finally got USB ROM flashed to my tablet, but now it wont recognize the DVB-T through my OTG cable. It works perfectly on my Note 3, is there some setting that I'm missing in the rom? When I try to turn on SDR Touch, it just give me the popup window Device Chooser with the option Use root access. I have granted SU persmission, just not sure why it's not working.

I tested it before flashing the rom, on Stock N7 and it worked like a champ..

Any ideas????

Thank you!

EDIT: The DVB-T does work with other apps like glSDR and Pocket RXTX with the exact same cable. I'm hoping I just missed something in the setup.
[Nexus 7 General] j03uen:
I was wondering what app you used so you could put invisible shortcuts over the image?
[Nexus 7 General] MetalMan2:
Desktop Visualizer.
[Nexus 7 General] j03uen:
Any way of making the icon bigger since the wallpaper button is rather large?

Also, I don't know what to google to find the solution, but have read it multiple times through the forums, I want my nexus 7 to turn on automatically after the battery is dead and gets a charge.
[Nexus 7 General] ayemiller:
Enter the following fastboot command, and the device will turn on automatically upon charge. Works great in my setup!

fastboot oem off-mode-charge 0
[Nexus 7 General] j03uen:
How about volume up/down, and media buttons?
[Nexus 7 General] Dnst:
How did you manage to turn the amplifier on and off with ignition?

Or could you generally explain, when the amplifier is turned on and off because I don't know how to manage the fact, that it consumes too much power to stay on all the time. For the tablet it is not necessary to turn it off as it wouldn't drain the battery anytime soon but the amplifier is a different matter.

Thanks in advance
[Nexus 7 General] gregthomas129:
Amplifiers have a remote on/off connection... connect it to a 12v wire that turns on and off with the ignition switch (key). Most people use the 12v switched wire in the original factory radio wiring harness.
[Nexus 7 General] MetalMan2:
Personally I have the navigation/status bar hidden. I set up a series of gestures using GMD Gesture Control. For example, 3-finger swipe down simulates the back button, 4-finger pinch is Home, 2-finger swipe to the right starting at the bottom-left 1/3 of the screen is the Menu button, 2-finger swipe to the right starting at the bottom-left 2/3 of the screen is the Recent Applications button, 3-finger swipe up is the Reboot Menu, 3-finger pinch operates a play/pause toggle I set up through Tasker, 2 fingers rotating clockwise is Next Song, 2 fingers rotating counter-clockwise is Previous Song, etc.

My setup uses an in-dash equalizer in place of the ash tray where I control volume and what-not. Though you could set up a gesture for it, like 3-fingers up is volume up and 3-fingers down is volume down, for example.

I turn my amplifiers on/off with the same signal that powers the tablet. It's basically an ignition-switch source, that turns on with the key-ON.
[Nexus 7 General] Fizzler73:
I appreciate the links and tutorial. I have found a new project :)
[Nexus 7 General] Peetje GTI:
Currently, i've got the same setup. However, i hear a loud popping noise when the ignition is switched on. When the N7 gets powered first, and the amp sometime later, everything's just fine. Got an idea what's the problem here?
[Nexus 7 General] lepapirriky:
Maybe its a ground problem.
[Nexus 7 General] gregthomas129:
I have the same problem, only mine pops only when I turn the ignition off. I suspect its the immediate loss of voltage whereas the on/off signal coming from a head unit would be more of a gradual decrease of voltage. I haven't verified this yet though. A capacitor across the popping amps remote turn on to ground should fix that.
[Nexus 7 General] gregthomas129:
Also this...

http://rftech.custhelp.com/app/answ...ops-and-thumps-and-how-can-i-get-rid-of-them?
[Nexus 7 General] hunterx82:
I need to pay someone to do this in northern Florida. This is amazing. Maybe I will hit up some local audio car shops to see if they have experience with it.
[Nexus 7 General] j03uen:
Any one seem to have this issue?

I have my tasker app to turn the screen on and off based off if there is a charge present at the usb port.

Basically, if I leave my car off for more than about 10 minutes, and then turn the car back on, the tablet won't turn on, I have to removed the usb cable from the port and plug it back in for it to turn on.

However, if I turn off the car, let the tablet sleep and turn the car back on within a minute or two, the tablet wakes as normal.

I thought it might be a loose usb port but seeing as it works within a minute and doesn't work in ten seems on.

Possibly not enough power at the voltage regulator?
[Nexus 7 General] Peetje GTI:
Thanks, could very well be the problem. Currently using a switch, don't think that pop is doing anything good to my amp/speakers :eek:
[Nexus 7 General] techstudio:
This is amazing. I need to figure this out for my '03 Mustang GT
[Nexus 7 General] gregthomas129:
Heres some motivation ;) My 07 GT...

http://mustangforums.com/forum/audio-visual-electronics/702814-my-nexus-7-dash-install-project.html
[Nexus 7 General] gregthomas129:
We have a 4.4 ROM for Nexus 7 car installs now... http://xdaforums.com/showthread.php?t=2660803
[Nexus 7 General] Kuchar09:
Already on it ;) Just need school to calm down so I can get everything re-setup n get my dash back together.

Oh n for those that want volume in the navbar check out ultimate dynamic navbar.
[Nexus 7 General] zere222:
no

How to make this 2 volume buttons on dekstop.. for UP & Down
[Nexus 7 General] shadowmyst87:
Looks like a really nice and clean install.

However all those accessories and all that wiring looks daunting and seems like a big hassle. To me it would be easier to just buy an aftermarket head unit, stow it away some where like in the glove box, etc. Mount the Nexus in the dash and just connect it to the head unit via USB. That way you've got your charging and audio all set up and you also have volume control. To me it just seems like a better option, unless of course you like the challenge.

Of course I realize that alot of head units don't support some Android apps through USB so your mileage may vary (pun intended).
[Nexus 7 General] Evelen:
icro USB Host OTG Cable with Micro USB Power

Hey. I need a this OTG Y Charge Cable, but amazone don't ship to Norway:(

Anyone know where I can buy a cable that works and that can be transported to Norway?

- Evelen
[Nexus 7 General] andyzhengster:
I call ship it to to Norway.

How much do you want?
[Nexus 7 General] pieinthesky10:
Wow! This is fantastic! Thank you for taking the time to post. Not sure that I will do anything similar, but love looking at great things like this :D
[Nexus 7 General] Evelen:
Hi! :)

If you'd sent such a cable to me in Norway that would be excellent.

Need one piece of the cable.

Which amount do you want for this job? (inkl cable+shipping)

preferred method of payment: PayPal

- Evelen

:good:
[Nexus 7 General] ITW2:
Ebay has a lot of these cables and ship to Norway
[Nexus 7 General] andyzhengster:
Hello sir,

Could you write mail to me "andyzhengster" ....gmail
[Nexus 7 General] Ish9:
Is there a way to use a Galaxy S3 as a Bluetooth keyboard with the Nexus 7?
[Nexus 7 General] Kuchar09:
Humm I remember finding an app that would make this possible but have not had a chance to try it. Think the app was called tablet remote
[Nexus 7 General] fixinggenie:
USB DAC

Has anyone looked into this guy at all?

Stoner Acoustic UD110 - I'd post a link, but i'm such a newb, I do not have the Authority

I am also looking at finding a low profile AMP to hid in the dash of my 08 Mazda 5, so if anyone has any info it would be greatly appreciated.
[Nexus 7 General] zanix:
I'm using this in my 2008 Mazda 3 for my front and rear speakers, sub uses a different amp

http://www.amazon.com/gp/product/B003VVYL46/
[Nexus 7 General] Netero Pito:
:o THAT'S GREAT, thanks
[Nexus 7 General] dna59:
Hey zanix thanks for reminding me about that amp. I've been running a cheap Chinese digital amp but it didn't have enough volume for my liking. Ordered and installed this amp and now everything sounds amazing! I'm using it with a clarion eq which makes my Polk dB speakers sound even better.
[Nexus 7 General] dimex:
I'm sorry, but I was reading through this thread and this post rubbed me the wrong way. You, davelee, are a fúcking douchebag and an ungrateful prick.
[Nexus 7 General] Kuchar09:
Well I've been looking at updating to 4.4.3 or 4.4.4 with a kernel. Anyone upgrade and running anythibg besides Timur's ROM with USB DAC and otg charge support?
[Nexus 7 General] gregthomas129:
Its kinda dead around here man! Lol! I've been using Kangarom... it works ok, but it locks up pretty often.

---------- Post added at 09:30 AM ---------- Previous post was at 09:27 AM ----------

Let me know how it goes if you decide to update, I might give it a go also.
[Nexus 7 General] jeb192004:
I been using kangarom without any issues...
[Nexus 7 General] Kuchar09:
Well I'm looking at the Slimkat 4.4.4 ROM with USB-DAC support and oxydo kernel.

Unfortunately I'm having issues modifying the kernel files on the tablet to enable fast charging, USB host and double tap 2 wake. Might have to check out a different kernel if I can't figure it out soon.
[Nexus 7 General] guisar:
You be able use another kernel and xposed for some of that but how is there osb dsc without usb host?
[Nexus 7 General] Kuchar09:
There isn't... That's my problem lol. Found out I had to make an init.d script to launch upon boot to adjust the kernel settings
[Nexus 7 General] blucmal:
Op or anyone with a nexus 7 in dash is extending the GPS and WiFi antennas absolutely necessary? Is there any guides showing how to do it?
[Nexus 7 General] gregthomas129:
I didn't have to extend mine. I had GPS problems at first but it ended up being a connection problem from the spring clips in the main board to the pads in the back cover for the antenna. Others may have a different experience though.
[Nexus 7 General] blucmal:
Thanks for the info would be a bonus if I didn't have to open the tab and modify the tab. Also for anyone whos interested I found an active project a front end for android car pc find it here http://www.mp3car.com/android/155941-building-an-android-frontend.html
[Nexus 7 General] guntus:
Backup Camera

Which is better/easier:

A) Wireless 2.4 Ghz camera with Easycap

B) WiFi camera?

Both options are around $40
[Nexus 7 General] Dnst:
Is there a chance Android Auto will run on the n7 2012?
[Nexus 7 General] Wassted:
[MENTION=2545824]kuchar[/MENTION],

I don't know how much of a difference it makes between your vehicle and my 07 Silverado, but I was able to get my steering wheel controls to work with joycon exr perfectly. With the engine running or not, they always work.

The dvb-t adapter. I couldn't justify spending more money on adapters than the receiver. I pryed the case open, stripped back a piece of rg6 and soldered it in. I had to knotch the plastic and hot glue it to get it back together. Then I put a female moto connector on the other end of the rg6. I have mixed results. In my Chevy I have a metra adapter between the stock antenna and the cable I made. Why gm did this I don't know. I think I'm going to try soldering the metra adapter directly to the dvb-t.

I say I have mixed results because I before I installed the n7 in my pickup I was testing it in my Honda. I took a 6” piece of 26awg wire and wrapped it around the tip of the honda's moto antenna plug and poked the other end onto the mcx connector on the dvbt; it works really well. Not as good as stock, but close.
[Nexus 7 General] Wassted:
Dvb- t antenna works better now.

So I had a GM adapter for my pickup that looked like this.

I cut the moto end off and found that the copper fit nicely into the mcx female connector. So I soldered the braided part to ground and used some hot glue to hold it together. So if you have a newer gm this may work for you. Before today the antenna worked, but it was horrible.
[Nexus 7 General] 02sonicblue:
Excellent tut, and videos.

Great job!! :good:

I'll have to subscribe because this is similar to what i am doing in my mustang.

I'm not trying to high-jack your thread, but help for your subscribers.

A tip for others installing an AMP, some Amps come with a remote you can purchase extra. Here is the AMP i have which has 6 channels.

This one is no longer made, but there are others like it, or you can one on line.

http://www.jlaudio.com/xd600-6-car-audio-xd-amplifiers-98262

Here is the remote.

http://www.amazon.com/JL-Audio-HD-RLC-HDRLC/dp/B0025ZT1IK

The volume control in action.

http://youtu.be/P89paX9fcYw
[Nexus 7 General] blucmal:
How did you wire up your on off switch nice job by the way :)
[Nexus 7 General] 02sonicblue:
It's not so much as a on/off which, but a way to turn off the charging.

Tablets and phones alike, wake when power is put to them or removed.

So i bought a secondary cigarette lighter and wired it up with the original cigarette lighter. Then put a toggle switch between the hot wire and the hot wire on the new cigarette lighter.

So when the button is pressed it will turn on or off the power to the secondary cigarette lighter.

This is the cig lighter i got , but any would work. (if needed, i can take out my tablet and show the wiring in a video)

http://www.walmart.com/ip/16351019?...39373550&wl4=&wl5=pla&wl6=38841643150&veh=sem

Here is the toggle switch i used. I'll post the wiring of the switch below.

12V Aluminum Metal Car Boat Power LED Start Latching Push On Button Switch 16mm

http://r.ebay.com/lzohd0
[Nexus 7 General] HasH_BrowN:
For install reference, this is another great clean install!!

http://xdaforums.com/showthread.php?p=50526799

We should have a vehicle install *stickier* There are a lot of talented people to learn from on this subject
[Nexus 7 General] saabster2010:
Kuchar,

absolutely awesome install. I have a Saab 97x which is a trailblazer like yours. I wanted to ask you on the hubs. I have my N7 connected with an OTG Y-splitter going to a powered hub (thru the cigarette socket, hardwired). I simply cannot get the rearview camera or USB drive to connect to the phone.

If I plug the USB drive directly to the female end of the y-splitter, the N7 reads it. I am using StickMount and also Timur's latest ROM (for the N7 2013).

How did you connect your rig to the hubs? I tried following your diagram, but my setup is simpler and dont have/need two hubs.

Thanks for the help and great job.
[Nexus 7 General] jeb192004:
Did you try restarting the tablet with everything hooked up to it? You might need to do that. That's what I had to do to get mine working...
[Nexus 7 General] saabster2010:
Yes sir, I did, several times. Still cant get anything to be recognized.
[Nexus 7 General] sirofpatrick:
Maybe someone can help with my issue.

I run also USBROM on my N7 3G, the Y-USBOTG cable is connected to an unpowered hub. To the hub i have connected a Sabre USB-DAC and a flash drive.

The flash drive is always shown as a slave device under the usb host settings, but after waking up the tablet from deep sleep the drive is not mounting and i have no music. After a reboot everything is working fine.
[Nexus 7 General] gduck24:
What are you guys thoughts on using an aftermarket receiver for the amp and Bluetooth communications in a tablet setup? I'm going to start on my project, but I can't find to many people that haven't gone full blown custom. I use hands-free talk too much and don't want to fool with it. not much luck that I've seen getting that going consistently with custom setups. I also have subs and don't want to mess with hum from cheap amps or components. It just seems like you connect to receiver aux input, and auto mute with blue tooth works , amp and other things work better with less complication? I have a Silverado and there's tons of room to mount a deck hidden below under the cup holders. Access will not be terrible if I have to reset.
[Nexus 7 General] Wassted:
I'm using the parrot 3200 for hands free. I use tablet talk as well so I can answer calls on the nexus. I have excellent sound quality. I'm using a clarion eq so I have control over my amps.
[Nexus 7 General] gduck24:
I've used some parrot stuff in the past. They worked ok back in the day, and that 3200 prolly works better than most because it's simple input, vs some of the new ones now. Problem is, a decent Bluetooth unit cost as much as another head unit that will auto connect, auto mute, etc. Tablet talk should work seamlessly with my nexii, and any off the shelf BT HU. I'm just thinking from scratch it will be easier and cheaper this way.

OP - not trying to jack your thread, still want input from guys like you and wasted for what you see as pros and cons to these setups.
[Nexus 7 General] swan3609:
I am just using a BT HU that I picked up off Craigslist for $40. I was going to try and do something custom, but in the end, it was cheaper to just use a BT HU.
[Nexus 7 General] gduck24:
So you use the aux in? Any major issues? Hum or connectivity?